If force on a rocket having exhaust velocity of 300 m/sec is 210 N, th – McqOptions

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1.	If force on a rocket having exhaust velocity of 300 m/sec is 210 N, then rate of combustion of the fuel is [CBSE PMT 1999; MH CET 2003; Pb. PMT 2004]
A.	0.7 kg/s
B.	1.4 kg/s
C.	0.07 kg/s
D.	10.7 kg/s
Answer» B. 1.4 kg/s

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